Replacing the outhaul

[landonshaw]

I need to replace the outhaul line that is connected inside the boom. I thought the line would be connected directly to the wire cable that attaches to the sail but it loops around a pulley which is connect to the wire and the other end of the braided line must be tied to something at the gooseneck inside the boom. I now understand that this is used to give a much stronger pull on the sail than a direct 1:1.


When looking at the gooseneck where it connects to the mast I see a connecting swivel that connects to a cap on the end of the boom. I believe that I will disconnect the boom, drill out the six pop rivets holding this cap to the boom. Any idea how the rope line that is connected to the pulley might be tied off to the boom in the boom?


FYI : I searched the forum on outhaul and found nothing.



Thanks
Aloisius

[Sailmonkey]

There are numerous ways to rig an out haul internally for added purchase. Too numerous to tell you anything really useful about how your particular outhaul is rigged.

[Nicholson58]

If you are simply replacing the line, stich-whip them together and pull the new one through.

[Suijin]

Yeah the attachment point is likely on the gooseneck fixture. Drill out the rivers and how to replace the line should reveL itself. As Sailmonkey says they are a rigged a number of ways and you won’t know how until you open it up.

[landonshaw]

Thank you. I did stich-whip the lines together, that is when I discovered that line ran through a pulley and one end connected inside of the boom somehow.



I intend to drill out the pop rivets, thread the holes and use a small hex head bolts as a replacement. This set up is how the cap is on the other end of the boom. Does anyone see a problem with this?


Thanks
Aloisius

[Calif.Ted]

I intend to drill out the pop rivets, thread the holes and use a small hex head bolts as a replacement. This set up is how the cap is on the other end of the boom

I thought it was more common to remove the boom end cap rather than the gooseneck, but those also usually have the outhaul terminate by exiting the cap. If one end has removable fasteners I'd be very tempted to remove that end first just to see before drilling out the rivets on the gooseneck.

[landonshaw]

I did remove the end that has screws and thought I could just thread the new rope and wire. That is when discovered I needed to get into the gooseneck end. An easy job become more involved.

[Calif.Ted]

I hate when that happens, makes you wish they'd considered the second and third owners when building.

[rognvald]

Landon,
I have an Isomat boom. It is impossible to service without drilling out the pop rivets on the end caps and tapping bolt holes for easy removal. Also, this must be done for the outhaul. I have never been a fan of internal boom blocks and prefer controls mounted externally for easy access and repair. Once you have access, everything is easily fixed. I hope this helps. Best, Rognvald

[landonshaw]

Thank you rognvald. Have you ever redesigned an outhaul from internal to external? If I replace the rivets with screws. I imagine the next time I have to make a repair it should be much easier.